Home / 19,059.12-26,306.88-13,395.12

Finding the Fourth Proportional to 19,059.12, 26,306.88 and 13,395.12

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Solution

The fourth proportional to 19,059.12, 26,306.88 and 13,395.12 is: 18,488.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,059.12 : 26,306.88 = 13,395.12 : x
  2. Step 2: Convert to fraction form
    19,059.12/26,306.88 = 13,395.12/x
  3. Step 3: Cross multiply
    19,059.12x = 26,306.88 × 13,395.12
  4. Step 4: Simplify right side
    19,059.12x = 352,383,814.43
  5. Step 5: Solve for x
    x = 352,383,814.43/19,059.12
  6. Step 6: Final answer
    x = 18,488.99

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.